From c63a6ee79cbe45b8f8092543a110361a66d50ca9 Mon Sep 17 00:00:00 2001
From: Chunyan Liu <cyliu@suse.com>
Date: Thu, 7 Apr 2016 17:40:28 +0800
Subject: [PATCH] libxl: pvusb: Correctly check the controller type

Missing a check of controller type.

Signed-off-by: Chunyan Liu <cyliu@suse.com>
CC: Simon Cao <caobosimon@gmail.com>
CC: George Dunlap <george.dunlap@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Acked-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
---
 tools/libxl/libxl_pvusb.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tools/libxl/libxl_pvusb.c b/tools/libxl/libxl_pvusb.c
index f0de36c572..d04cb93fad 100644
--- a/tools/libxl/libxl_pvusb.c
+++ b/tools/libxl/libxl_pvusb.c
@@ -862,6 +862,13 @@ static int libxl__device_usbdev_setdefault(libxl__gc *gc,
                 }
             }
 
+            if (usbctrl->type != LIBXL_USBCTRL_TYPE_PV &&
+                usbctrl->type != LIBXL_USBCTRL_TYPE_QUSB) {
+                LOG(ERROR, "Unsupported USB controller type");
+                rc = ERROR_FAIL;
+                goto out;
+            }
+
             rc = libxl__device_usbctrl_add_xenstore(gc, domid, usbctrl,
                                                     update_json);
             if (rc) goto out;
-- 
2.30.2